few people with a certain type of leukemia were given a one-time experimental gene therapy several years ago. today they are reportedly cancer-free. at least six research groups treated more than 120 patients with bone and blood cancers. and are getting similar, stunning results. >>> the obama administration's middle east policy is dominating the conversation this weekend in washington. the and secretary of state john kerry each taking their turn addressing concerns over the iran nuclear deal at a forum today. tensions rising between the u.s. and israel, which staunchly has rejected that deal, which eases sanctions on iran. the forum comes on the heels of secretary kerry's meeting with israeli prime minister benjamin netanyahu. they are trying to reassure them the u.s. has their best interest in mind. >> if we can negotiate on the nuclear program the same way ronald reagan was able to negotiate with the soviet union even as we were still contesting them around the world, that removes one more threat. >> molly live for us tonight. >> iran's economy is in such dire straits because of the i